//==============================================================================
//
//  Copyright (c) 2017-2021 Qualcomm Technologies, Inc.
//  All Rights Reserved.
//  Confidential and Proprietary - Qualcomm Technologies, Inc.
//
//==============================================================================

#ifndef _SNPE_BUILDER_HPP_
#define _SNPE_BUILDER_HPP_

#include "SNPE/SNPE.hpp"
#include "DlSystem/DlEnums.hpp"
#include "DlSystem/UDLFunc.hpp"
#include "DlSystem/DlOptional.hpp"
#include "DlSystem/TensorShapeMap.hpp"
#include "DlSystem/PlatformConfig.hpp"
#include "DlSystem/IOBufferDataTypeMap.hpp"
#include "DlSystem/RuntimeList.hpp"

namespace zdl {
   namespace DlContainer
   {
      class IDlContainer;
   }
}

struct SNPEBuilderImpl;


namespace zdl { namespace SNPE {
/** @addtogroup c_plus_plus_apis C++
@{ */

/**
 * The builder class for creating SNPE objects.
 * Not meant to be extended.
 */
class ZDL_EXPORT SNPEBuilder final
{
private:
   std::unique_ptr<::SNPEBuilderImpl> m_Impl;
public:

   /**
    * @brief Constructor of NeuralNetwork Builder with a supplied model.
    *
    * @param[in] container A container holding the model.
    *
    * @return A new instance of a SNPEBuilder object
    *         that can be used to configure and build
    *         an instance of SNPE.
    *
    */
   explicit SNPEBuilder(
      zdl::DlContainer::IDlContainer* container);
   ~SNPEBuilder();

   /**
    * NOTE: DEPRECATED, MAY BE REMOVED IN THE FUTURE. Please use
    *       setRuntimeProcessorOrder()
    *
    * @brief Sets the runtime processor.
    *
    * @param[in] targetRuntimeProcessor The target runtime.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setRuntimeProcessor(
      zdl::DlSystem::Runtime_t targetRuntimeProcessor);

   /**
    * @brief Requests a performance profile.
    *
    * @param[in] targetRuntimeProfile The target performance profile.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setPerformanceProfile(
      zdl::DlSystem::PerformanceProfile_t performanceProfile);

   /**
    * @brief Sets the profiling level. Default profiling level for
    *        SNPEBuilder is off. Off and basic only applies to DSP runtime.
    *
    * @param[in] profilingLevel The target profiling level.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setProfilingLevel(
      zdl::DlSystem::ProfilingLevel_t profilingLevel);

    /**
     * @brief Sets a preference for execution priority.
     *
     * This allows the caller to give coarse hint to SNPE runtime
     * about the priority of the network.  SNPE runtime is free to use
     * this information to co-ordinate between different workloads
     * that may or may not extend beyond SNPE.
     *
     * @param[in] ExecutionPriorityHint_t The target performance profile.
     *
     * @return The current instance of SNPEBuilder.
     */
   SNPEBuilder& setExecutionPriorityHint(
            zdl::DlSystem::ExecutionPriorityHint_t priority);

    /**
    * @brief Sets the layers that will generate output.
    *
    * @param[in] outputLayerNames List of layer names to
    *                             output. An empty list will
    *                             result in only the final
    *                             layer of the model being
    *                             the output layer.  The list
    *                             will be copied.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setOutputLayers(
      const zdl::DlSystem::StringList& outputLayerNames);

   /**
   * @brief Sets the output tensor names.
   *
   * @param[in] outputTensorNames List of tensor names to
   *                             output. An empty list will
   *                             result in producing output for the final
   *                             output tensor of the model.
   *                             The list will be copied.
   *
   * @return The current instance of SNPEBuilder.
   */
   SNPEBuilder& setOutputTensors(
      const zdl::DlSystem::StringList& outputTensorNames);

   /**
    * @brief Passes in a User-defined layer.
    *
    * @param udlBundle Bundle of udl factory function and a cookie
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setUdlBundle(
      zdl::DlSystem::UDLBundle udlBundle);

   /**
    * @brief Sets whether this neural network will perform inference with
    *        input from user-supplied buffers, and write output to user-supplied
    *        buffers.  Default behaviour is to use tensors created by
    *        ITensorFactory.
    *
    * @param[in] bufferMode Whether to use user-supplied buffer or not.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setUseUserSuppliedBuffers(
      bool bufferMode);

    /**
    * @brief Sets the debug mode of the runtime.
    *
    * @param[in] debugMode This enables debug mode for the runtime. It
    *                      does two things. For an empty
    *                      outputLayerNames list, all layers will be
    *                      output. It might also disable some internal
    *                      runtime optimizations (e.g., some networks
    *                      might be optimized by combining layers,
    *                      etc.).
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setDebugMode(
      bool debugMode);

   /**
    * NOTE: DEPRECATED, MAY BE REMOVED IN THE FUTURE. Please use
    *       setRuntimeProcessorOrder()
    *
    * @brief Sets the mode of CPU fallback functionality.
    *
    * @param[in] mode   This flag enables/disables the functionality
    *                   of CPU fallback. When the CPU fallback
    *                   functionality is enabled, layers in model that
    *                   violates runtime constraints will run on CPU
    *                   while the rest of non-violating layers will
    *                   run on the chosen runtime processor. In
    *                   disabled mode, models with layers violating
    *                   runtime constraints will NOT run on the chosen
    *                   runtime processor and will result in runtime
    *                   exception. By default, the functionality is
    *                   enabled.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setCPUFallbackMode(
      bool mode);


   /**
    * @brief Sets network's input dimensions to enable resizing of
    *        the spatial dimensions of each layer for fully convolutional networks,
    *        and the batch dimension for all networks.
    *
    * @param[in] tensorShapeMap The map of input names and their new dimensions.
    *                           The new dimensions overwrite the input dimensions
    *                           embedded in the model and then resize each layer
    *                           of the model. If the model contains
    *                           layers whose dimensions cannot be resized e.g FullyConnected,
    *                           exception will be thrown when SNPE instance is actually built.
    *                           In general the batch dimension is always resizable.
    *                           After resizing of layers' dimensions in model based
    *                           on new input dimensions, the new model is revalidated
    *                           against all runtime constraints, whose failures may
    *                           result in cpu fallback situation.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setInputDimensions(const zdl::DlSystem::TensorShapeMap& inputDimensionsMap);

   /**
    * @brief Sets the mode of init caching functionality.
    *
    * @param[in] mode   This flag enables/disables the functionality of init caching.
    *                   When init caching functionality is enabled, a set of init caches
    *                   will be created during network building/initialization process
    *                   and will be added to DLC container. If such DLC container is saved
    *                   by the user, in subsequent network building/initialization processes
    *                   these init caches will be loaded from the DLC so as to reduce initialization time.
    *                   In disable mode, no init caches will be added to DLC container.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setInitCacheMode(
      bool cacheMode);

   /**
    * @brief Returns an instance of SNPE based on the current parameters.
    *
    * @return A new instance of a SNPE object that can be used
    *         to execute models or null if any errors occur.
    */
   std::unique_ptr<SNPE> build() noexcept;

   /**
    * @brief Sets the platform configuration.
    *
    * @param[in] platformConfig The platform configuration.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setPlatformConfig(const zdl::DlSystem::PlatformConfig& platformConfig);

   /**
    * @brief Sets network's runtime order of precedence. Example:
    *        CPU_FLOAT32, GPU_FLOAT16, AIP_FIXED8_TF
    *        Note:- setRuntimeProcessor() or setCPUFallbackMode() will be silently ignored when
    *        setRuntimeProcessorOrder() is invoked
    *
    * @param[in] runtimeList The list of runtime in order of precedence
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setRuntimeProcessorOrder(const zdl::DlSystem::RuntimeList& runtimeList);

    /**
    * @brief Sets the unconsumed tensors as output
    *
    * @param[in] setOutput This enables unconsumed tensors (i.e)
    *                      outputs which are not inputs to any
    *                      layer (basically dead ends) to be marked
    *                      for output
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setUnconsumedTensorsAsOutputs(
      bool setOutput);

    /**
    * @brief Execution terminated when exceeding time limit.
    *        Only valid for dsp runtime currently.
    *
    * @param[in] timeout Time limit value
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setTimeOut(
      uint64_t timeout);


   /**
    * @brief Sets the datatype of the buffer.
    *        Only valid for dsp runtime currently.
    *
    * @param[in] Map of the buffer names and the datatype that needs to be set.
    *
    * @return The current instance of SNPEBuilder.
    */
   SNPEBuilder& setBufferDataType(const zdl::DlSystem::IOBufferDataTypeMap& dataTypeMap);

};
/** @} */ /* end_addtogroup c_plus_plus_apis C++ */

}}

#endif